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 */

package action;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.Part;

/**
 *
 * @author gjun
 */
@MultipartConfig
@WebServlet(name = "Upload4Servlet", urlPatterns = {"/Upload4Servlet"})
public class Upload4Servlet extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet Upload4Servlet</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet Upload4Servlet at " + request.getContextPath() + "</h1>");
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        //processRequest(request, response);
        request.setCharacterEncoding("UTF-8");
        String path =this.getServletContext().getRealPath("/upload") +"/";
        for(Part p :request.getParts() ){
            System.out.println(p.getContentType());
            //System.out.println(p.getSubmittedFileName());
            System.out.println(p.getSize());
            System.out.println(p.getName());
            System.out.println(".....................");
            if(p.getName().indexOf("doc")!=-1 && !"".equals(this.getFileName(p))){
                p.write(path+this.getFileName(p));
            }
          
    }
         request.getRequestDispatcher("upload4.jsp").forward(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
    String getFileName(Part p){
        String filename = p.getHeader("Content-Disposition");
        System.out.println(filename);
        int beginIndex = filename.indexOf("filename=\"");
        int endIndex =filename.lastIndexOf("\"");
        filename = filename.substring(beginIndex+10, endIndex);
        
        int a = filename.indexOf(".");
        if(a !=-1){
            String x = filename.substring(0, a);
            String y = filename.substring(a+1);
            filename = x +"01." + y;
        }
        
        return filename;

}
}
